Carpet-manufacturing machine



Dec. 1, 1925; 1,563,338

' M: CARRANZA CARPET MANUFACTURING MACHINE Filed July 17 1924 2 Sheets-Sheet 1 Marce 21,710 Car/6.2 28.

Dec. 1, 1925. 1,563,338

M. CA-RRANZA CARPET MANUFACTURING MACHINE Filed July 1'7. 1924 2 Sheets-Sheet 2 All!!! :umummllll? N:- Q Inn lEii M a E; N I) a 3 g g I gwuvmtoc o V O) l MarceZma Carranza.

attoqwq Patented Dec. 1, 1925.

UNITED STATES MARCEIJINO CARRANZA, F BUENOS AIBES, ARGENTINA.

CARPET-MANUFACTURING MACHINE.

Application fil d July 17, 1924. Serial No. 726,607.

To all whom it may concern:

Be it known that I, Miinonrimo GARRANZA, a citizen of the Republic of Argentina, residing at 1051 Viamonte Street, Buenos Aires, Argentina, have invented certain new and useful Improvements in Carpet-Manufacturing Machines, of which the following is a specification.

The present invention relates to an improved machine adapted to be used in the manufacture of carpets, its object being to provide a very simple and economical ma chine which will reduce the cost of producing carpets to a low figure. This machine is adapted to produce a kind of tufted cord or chenille which is thereafter used as the weft to produce a chenille carpet in any suitable loom. The machine according to the present invention consists of a rotary parallel lathe which is adapted to produce the cord in any length or size depending upon the size of the bars used, which-bars form one of the objects of the invention. A further object of this invention is to produce a tufted cord which consists in winding the wool threads around two suitably spaced cords, sewing the threads to the cords and then cutting the threads on a line intermediate the cords to thus produce a tufted cord of twice the length of the bars on which it is produced. Another object consists in constructing a lathe which is adapted to receive a cord by means of a pair of bars and around said cord and bars a thread is wound which forms the tread of the carpet.

Other objects will be apparent from the following description taken in connection with the accompanying drawings in which corresponding numerals indicate like parts throughout and in which:

Figure 1 is a front View of the complete lathe showing parts in section,

Fig. 2 is a sectional view thereof on line A-B of Fig. 1.

Fig. 3' is a plan view of the lathe,

Fig; a shows an end view, a section, and a front view of the circular disk, and

Fig. 5 is a front View of the secondary disk. j

The lathe ofthis invention consists of a metal base member 1 having secured thereto at each end a head piece 3 by means of bolts 4 and 5. Each jhead piece has a rotatable shaft 6 secured therein, the shaft in the left head piece being secured in. place by means of nuts 8 and 9. The shaft inthe head piece at the right indicated by 13 in Fig. 1 is the driving shaft and is longitudinally movable in its head piece. This right shaft is secured in place and is adjustable by means of a driving pulley 37 screw-threaded on the shaft. This driving shaft also is provided with a pinion 11 having a key 34 which is adapted to engage and slide in slot 85 in the shaft. Thus the pinion will allow the driving shaft to be adjusted longitudinally but will rotate therewith. The inner ends of the shafts 6 are provided withforks 7 each having suitable openings therein. for the reception of the retaining pins 1 1. As will be seen from the drawing each shaft 6 is provided with a ball bearing which act as thrust bearings for the head pieces since certain parts, as will be explained, are tensioned between the forks and the bearings will thus reduce the friction to a minimum.

The forks 7 of the shafts 6 are adapted to receive, by means of the pins, a pair of separable bars 15 of iron or any other suitable material. These bars may be of varying sizes including length, breadth and thickness, depending upon the thickness and size of the carpet to be manufactured.

Each head piece forms a bearing for a threaded rod having a thrust bearing 24 at each end and rotatably secured in the head pieces by means of nuts 25, 26 and 28, the latter of which is threaded on the end 27. This rod is supported at intervals, depending upon its length, by a bearing 23 which supports the rod at the reduced por tion 21. This bearing has a semicircular cross-section as will be seen from Fig. 2 and is furthermore provided with a chamber '29 into which oil is introduced through a suitable hole 31 in the side 30. This bearing is suitably secured on the base member 1 as shown and its upper ends in which the bearing surface is provided terminates in a plane'intersecting the axis of the rod 20 so that the bearing surface in cross-section is in the form of a semicircle in order that the steel guide block 40, which also has a hearing surface having a cross-section somewhat smaller than a semicircle, may pass thereover as is clearly illustrated in Fig. 2 of the drawing.

The mechanism which guides the wool 42, which forms the tufts of the chenille, complisgs the teei guide block 410 which is screwrthreaded and the form of a semi cylinder; This guide is supported on and is adapted to travel on the rod by means of the corresponding screw-threads and it further comprises a vertical plate which is soldered or otherwise suitably secured thereto. This plate has a weight d6 fixed near its lower end in order to suitably balance the guide on the rod 20. A supporting arm s3 is secured on the side of the guide opposite to that on which the plate is secured and terminates in a guide' ring which is adapt d to partially surround the bars 15 as shown in Fig. 2. This guide ring 44 is adapted to suitably guide the circular retaining member as will ex plained. An electric switch box cured to the plate il-'5 and is provided with a switch li'andle' i8, the current entering the b'ox by means of wire 49. This handle as will b'e seen is within easy reach of the opei'zitor and thus the machine, which is adapted to be operated by an electric motor by means of pulley 37 can be easily and readily controlled. The opening of the electric circuit my also be automatically effected by any other suitable means, for instance by means of the guice striking a' switch at the end of its travel. Instead of the i'v'eight 6 a b'ar'may be fixed to the plate 45, said bar, not shown on'the drawing, carrying a suitable number of bobbins for the wool thread, each of which being then provided with the usual ten'sioning means. In this mani'ier avery regular and automatic operation may be -obta-ined. A guide pin 41 is secured on the guide 40 for guiding the wool thread l2.

The main reta'in'i-ng' member or dish 50 consists of a disc of fibre or metal as shown in Fig. 4 and isprov'ided with'a slot 59 corresp'onding to the thickness of the bars 15 and whose length is equal to the width of both bars as placed in themachine together with the thicl'rn'essof the'cord 17. The'purpose of the retaining disk is to hold both bars 15 securely in place duringrotati'on in order to prevent them from stretching apart due to centrifugal force when the lat-he is turning at a speed of 1000 rei olutions per minute or more. A further p'u'rposeof this disk is to hold the'bars firmly in place im mediately before the bars are wound with the wool thread 42, this disk being adapted to travel with the guide, since it is moved forward by the ring 445 due to the movement of the guide 5 0. Secondary guide plates are also used which are suitably placed at suitable intervals on the bars 15 for holding them together and these plates are moved along: with the disk 50 diliring operation when the guide 40 reaches them.

In order to compensate for "the tightness and strains caused by the rod 20 and the bars 15, ribs 32 a1 1d 33 are provided in each of the head pieces, which bear against the base 1 and thus prevent anytendency of the head pieces 3 from being bent inwardly or broken off. The head piece 3 which supports the pulley 37 by means of theshaft 0 is provided with a recess in which suitable iron bar, not shown, may be in sorted in' order to secure the shaft 0 from turning due to its contact with a flat side of the fork 7 by merely forcing the bar manually against the flat side. This is necessary in order to tighten the bars 15 in the forks by means 'of the pulley 37.

The operation of the machine is a: lows:

The pulley is given three or four revolutions in the reverse direction preventing, at the same time, the shaft 6 upon which the pulley is mounted from rotating in order to loosen the shafts 6. "With the bars 15 in place in the left fork 7 by means of the pins let passed through holes 16 in the bars, the cord 18 is passed around the outside edges of the bars from the spool 54, as indicated on the drawing by means of the nun'ieral 17, and then the necessary number of secondary guide plates 53 are placed on the bars including also the disc 50, which is, of course, first placed on the bars and against the ring as. This assembly is now placed in the right fork and secured in place by the pins-14 after which the cord 18' is tied at the right end of the bars and the ends cut othasindicated at 19. After setting an iron bar'into the recess 38 to avoid the turning of the right shaft 6, the pulley 37 is tightened against the pinion 11 which thus will tension the bars in the forks; By any suitable operation the guidell isplac'ed to the extreme leftof the machine and theg'uide plates are then suitablysp'ac'ecl on the bars. The wool thread. is" now set in place by forcing its end he tweeii the side of the fork and the bar or between the rod and the cord at the point and 'it'pa'sses-o'ver theguide- 40 and is retained by the guide pin 41; The machine is then started and motion is imparted to the pulley 37 by any suitable transmission belt which in turn'rotates the bars and the pinion 11. This pinion will impart motion to the pinion 12 by any suitable chain transmission, not shown, which will thus impart motion to the rod 20. At a speed of approximately 1000 revolutions per minute the guide' lO will travel from the left to the r'ightdue to the screw-threads in the direction of the arrow 52 and thus wind the woolthread on the cord and the bars. After thewinding operation the bars with thethread and cord thereon are taken out of the machine by loosening the bars and removing the pins and the wool threads are'then sewed to the cord on any suitable sewing machine, not shown. Fig. 1 shows by the short dotted lines at the left on the i folcord 17 and the cross-threads the line of stitches and line 56 indicates where the novel threads are out after the sewing operation is completed. It is to be remembered that the sewing operation is carried out while the threads and cord are still on the bars and both sides may be sewed on a double sewing machine or each side may be sewed separately depending upon the type of sewing machine used. After the wool threads are cut the bars are easily removed and thus a tufted cord is produced in two lengths, each being as long as the bar. It is thus apparent that the finished chenille may be of any desired size and thickness depending upon the size of the bars used. This tufted cord is now used as the weft in any suitable loom to produce a carpet by any suitable weaving operation. The operation described in the foregoing is set forth by way of example but it is to be understood that the steps may be interchanged, depending upon the skill of the operator or the speed at which the finished cord is to be produced.

It is obvious that many constructional and other changes may be introduced without departing from the scope of the present invention.

I claim as my invention.

1. A tufted cord making machine comprising a base member; a pair of separable bars rotatably mounted on said base, said bars being adapted to receive a cord around the edge thereof; and means for rotating said bars in order to wind a thread around said bars and the cord.

2. A tufted cord making machine comprising a base member; a pair of head pieces mounted on said base member; a shaft mounted in each head piece, each of said shafts having a fork at its inner end; a pair of bars removably mounted in said forks and adapted to receive a cord; a screwthreaded rod rotatably mounted in said head pieces; a guide mounted on said rod and adapted to be moved on and by the screw-threads of said rod, said guide being adapted to convey and guide a thread; and means for rotating said shafts and rod in order to wind said thread around said cord.

3. A tufted cord making machine comprising a base member; a pair of head pieces mounted on said base member; a shaft mounted in each head piece, each of said shafts having a fork at its inner end and one of said shafts being longitudinally adjustable; a pair of bars removably mounted in said forks and adapted to receive a cord and be tensioned by means of said longitudinally adjustable shaft; a screw-threaded rod rotatably mounted in said head pieces; a guide mounted on said rod and adapted to be moved on and by the crew-threads of saidrod, aid guide being adapted to convey and guide a thread; and means for rotating said shafts and rod in order to wind said thread around said cord.

4. A tufted cord making machine comprising a base member; a pair of head pieces mounted on said base member; a shaft mounted in each head piece, each of said shafts having a fork at its inner end and one of said shafts being longitudinally adjustable; a pair of bars removably mounted in said forks and adapted to receive a cord and be tensioned in said forks by means of the longitudinally adjustable shaft; a pulley screw-threaded on the other end of said longitudinally adjustable shaft adapted to drive said shafts and to form a locking means for said adjustable shaft; a screwthreaded rod rotatably mounted in said head pieces and adapted to be rotated in said adjustable shaft; and. a guide mounted on said rod and adapted to be moved along by the screw threads, said guide being adapted to convey and guide a thread in order to wind the thread around said cord.

5. A tufted cord making machine comprising a base member; a pair of head pieces mounted on said base member; a shaft mounted in each head piece, each of said shafts having a fork at its inner end; a pair of bars removably mounted in said forks and adapted to receive a cord; a screwthreaded rod rotatably mounted in said head pieces and adapted to be rotated by one of said shafts; a guide mounted on said rod and adapted to be moved along by the screw threads, said guides being adapted to con vey and guide a thread; and means for rotating said shafts in order to wind said thread around said cord.

6. A tufted cord making machine comprising a base; a head piece mounted at each end of said base, said pieces comprising bearing supports; a shaft having a forked end in each head piece; a rod mounted in said head piece; a guide mounted on said rod and adapted to be controlled by the retation of said rod; a pair of bars adapted to be inserted in the forked ends of said shafts and to receive a cord; and means for rotating said bars and moving said guide so that said guide may direct a thread around said bars and cord.

7. A tufted cord making machine com prising a base member; a pair of head pieces mounted on said base; a shaft having a forked end in each head piece; a rod mounted in the head pieces; a thread guide mounted on said rod; a pair of bars adapted to be removably inserted in said forked ends of said shafts and to receive a cord; and means for rotating said bars and moving said guide so that said guide may direct a thread around said bars and cord.

.8. A tufted cord making machine comprisinga base member; a pair of head pi mounted on: said base; a shaft for each head piece; a rod mounted in said head pieces; a guide for a thread mounted on said rod and adjusted to be controlled thereby; a pair of bars adapted to be inserted in said shafts and to receive a cord; and means for rotating said bars and moving said guide so that said guide may direct the thread around said bars and cord.

9. A tufted cord making machine comprising a base member; a pair of head pieces mounted on said base; a shaft for each heat piece; a rod mounted in said head pieces;

a guide for a thread mounted on said rod and adjusted to be controlled thereby a pair of bars adapted to be inserted in said shafts and to receive a cord; means for rotating said bars and moving said guide so that said guide may direct the thread around said bars and cord; and a plurality of discs on said bars in order to prevent the bars from spreading due to centrifugal force.

10. A tufted cord making machine comprising a base member; a pair of bars rota tably mounted on said base said bars being adapted to receive a cord; means for rotating said bars; means for winding a thread around said bars and the cord while said bars are rotating; and a plurality of discs on said bars in order to prevent the bars from spreading due to centrifugal force.

11. A tufted cord making machine comprising a base member; a pair of shafts mounted to rotate on said base member; a rod rotatably mounted on said base member; a guide for a thread mounted on and controlled by said rod; a pair of bars adapted to be inserted between said shafts and to receive a cord; and means for rotating said shafts and rod in order that said guide shall direct the thread around said cord and bars.

12. A tufted cord making machine comprising a base member; a pair of shafts mounted to rotate on said base member; a rod rotatably mounted on said base member; a guidefor a thread mounted on and controlled by said rod; a pair of bars adapted to be inserted between said shafts and to receive a cord; means for rotating said shafts and rod in order that said guide shall direct the thread around said cord and bars; and a plurality of discs on said bars in order to prevent said bars from spreading, due to centrifugal force.

13. A tufted cord making machine comprising a base member; a pair of shafts r0- tatably mounted on said base; a rod rota tably mounted on said base member; a guide for a thread mounted and controlled by said rod; a pair of bars adapted to be removably inserted between said shafts and to receive a cord around the outside edges of said bars; and means for rotating said shafts, bars and rod in order that said guide shall direct the thread spirally around said cord and bars.

In testimony whereof I affix my signature.

MARCELINO CARRANZA. 

